Anchoring device



y 9 F. MICHALICEK 1,807,488

ANCHORING' DEVICE Filed Nov. 4, 1950 .4: 0 1 INVENTOR. Z 35. ggy, fiEaZ/I/Zbkdli'k fit: A BY g ATTORNEY.

Patented May 26, 1931 FRED riIcHALIcEK, or ESTACADA, onneoiv ANCHORING- DEVICE Application filed November 4,1930/ Serial No. 493391.

This invention relates to an anchor device particularly adapted for use in securing guy lines and thelike, but it is to be understood that an anchor device in accordance 5 with this invention may be used for any purpose for which the same is found to be applicable. 1

The primary object of the invention is to provide, in a manner as hereinafter set forth, 10 an anchor device which is adapted to be buried in the ground or other materiahand which is constructed in a manner to increas ingly resistthe removal thereof in direct proportion to the force exerted thereon by the bject secured thereby.

With the foregoing and other, objects in View, the invention consists of the novel construction, combination and arrangement of parts as hereinafter more particularly described and as illustrated in the accompanying drawings wherein are shown embodiments of the invention, but it is to be understood that the description and drawings are.

to be taken as illustrativeand that the invention is intended to be limited only by the scope of the claims hereunto appended.

In the accompanying drawings in which like numerals are employed to designate like parts throughout the several views:

trating successive steps in the installation of an anchor device in accordance'with this invention. a

' Figure3 is a of Figure 1.

Figure 4 is a reduced perspective vlew of one of the sections ofthe anchor device;

Figureb. is a fragmentary vertical section showing a slightly modified form of the dev1ce. 3

Referring to the drawings in d-etail,'the numeral 1 indicates a pair of arcuate sections preferably formed of cast metal. Each of the sections lis transversely corrugated as in- 5 dicated at 2, and is formed at its upper edge with an inturned flange 3 which extends at a slight downward inclination-towards-the center of the device. The flange 3 of each of 5 thesections 1 is formed centrally of its 9 free edge witharecess 4.1,; y

section taken on the line 3 3 Secured to the inner peripheral face of each of the sections 1, adjacent the upper edgethereof, and'substa-ntially mid-way xbctween the side edges" thereof is an apertured ear. 5. Adjacent the loweredge thereof, each of the sections 1 is provided with. an apertured ear 6 similar to the ear 5. The cars, 6 are arranged in vertical alignment withthe ears 5.

Having their upper ends pivotally connected with the ears 5 are a pair of links 7 which extend at downward andlinward inclmatl'ons and are pivotally connected at their lower ends to a floating plate 8 which coacts with the links 7 and ears 5 to provide a hinged connection between the sections 1 at the upper edges ofthe latter- Havingtheir upper ends pivotally connected to the ears 6 are a. pair oflinks'9 similar to thelinks 7 which-extend at downward and inward inclinations and arepivotally connected at their lowerends to a floating plate 10 which coacts with the links 9 and ears 6 to provide a hinged connection between the sections 1 at the lower edges of the latter.

Seated on the flanges 3 is arigid plate 11 which is of substantially the same diameter as thatof the combined sections 1v when the latter are arranged in closely assembled re A lation: The plate 11 is formed centrally 0 Figures 1 and 2 are vertical sections lllllS-- thereof with an'opening 12 for theext'en siontherethrough of a rod 13 by means of. which the'anchor device may be connected 1 With the object to be secured thereby. The

rod 13 extends through the oppositely disposed recesses 4 in the'flanges 3 and furtherslidably extends through an apertured boss 14 formed integrally with the floating plate 8 centrally of the latter. The rod 13 is formed with an externally threaded lower end portion indicated at 15 for engagement with the threaded wall of an apertured boss 16 formed integrally with the floating plate 10 centrally of the latter. 'Encircling the rod 13 is a rigid tube 17 the upper end of which abuts the lower face of the floating plate 8, and the lower end of which abuts the upper face of the boss 16. Fixedly securedto the; rod 18,-above the rigid plate 11, is 'a'coll'ar 18 .which; is adaptedto engage the plate to limit downward movement of the rod relative to the sections 1.

In the installation of the device, the rod 13 is inserted through the opening 12, recesses 4, boss 14, and tube 17, and is rotated apartial turn to engage the threads thereof with the internally threaded boss 16. The device is then lowered into a circular opening such as 19, after which the rod 13 is rotated to bring the collar 18 into engagement with the plate 11 as illustrated in Figure 1. The rotation of the rod 13 causes an upward movement of the floating plates 8 and 1.0, thereby causing the sections 1 to be forced apart owing to the links 7 and 9 connecting the sections with the plates 8 and 10 whereby the peripheral faces of the sections are forced laterally into the wall of the opening 19.

, The guy line or other object to be secured is then connected with the rod 13 by means of an eye 20 formed at the upper end of the latter, after which the guy line is tightened in any suitable manner. In the event that the material forming the wall of the opening 19 i is of sufficient hardness to resist any further spreading of the sections 1, any upward movement of the rod 13 by the force exerted thereon by the object connected therewith is prevented. In the event of the material forming the wall of the opening 19 being of a material to offer less resistance to further spreading of the sections 1, the rod 13 will be moved upwardly and the sections 1 forced farther into the wall of the opening 19 asindicated in Figure 2. If the upward force on the rod 13 should be sufiicient to move the links '1 and 9 to a horizontal position, the links 7 will be brought into abutment with the flanges 3, thereby preventing any closing movement of the sections which might otherwise take placeby movement of the links throiwh horizontal position. Prior to the connection of the rod 13 with the object to be secured, the" opening 19 above the plate 11 is filled in, thus it will be seen that in the event of a maximum spread of the sections,

any further upward movement of the rod willbe resisted by the material filled in above the plate 11, as well as by the frictional engagement of the corrugated peripheral faces of thelsections with the wall of the opening and by theportion of the wall of the opening which is located over marginal portions of the flanges 3. v

The embodiment illustrated in Figure 5 is of the same construction as that above described, except that the sections 21 are formed of smooth material and are provided with outwardly directed, circu'mferentially extending. ribs 22 which are adapted to be forced into the wall of the opening within which the device is inserted upon the spreading of the sections. V r V p It i's-thouglit that the many advantages of an anchor" device inaccordance with this in-' vention will be readily apparent, and although the preferred embodiments of the invention are as illustrated and described, it is to be understood that changes in the size, length, shape and arrangement of parts may be resorted to, so long as such changes fall within the scope of the invention as defined in the appended claims.

What I claim is 1. An anchor device comprising, a plurality of arcuate sections for insertion within an opening, each of said sections being formed at its upper edge with an inward projection, a plurality of links pivotally connected with said sections adjacent the upper edges of the latter, a plurality of link-s pivotally connected with said sections adjacent the lower edges of the latter, each of said links extending at a downward and inward inclination, a pair of floating plates pivotally connected respectively with said links which are connected with the upper and lower edges of the sections, a rod slidably extending through the uppermost ofsaid floating plates and threadedly engaging the lowermost of said floating plates, a rigid tube encircling the rod in abutment with said floating plates, and stop means carried by said sections and rod for limiting downward movement of the latter relative to the sections.

2. An anchor device comprising, a pair of oppositely disposed arcuate sections for insertion within an opening, each of said sections being formed at itsupper edge with an inward projection, a pair of links pivotally connected with said sections adjacent the upper edges of the latter, a pair of links pivotally connected with said sections adjacent the lower edges of the latter, each of said links extending at a downward and inward inclination, a pair of floating plates pivotally connected respectively with said pairs of links, a rod slidably extending through the uppermost of said floating plates and threadedly engaging the lowermost of said floating plates, a rigid tube encircling the rod in abutment with said floating plates, and stop means carried by said sections and rod for limiting downward movement of the latter relative to the sections, said sections having their peripheral faces formed with means for biting engagement with the wall of said opening upon the spreading of said sections.

3. An anchor device comprising, a pair of oppositely disposed arcuate sections for insertion within an opening, each of said sections being formed at its upper edge with an inward projection, a pair of links pivotally connected with said sections adjacent the upper edges of the latter, a pairof links pivotally'connected with said sections adjacent the lower edges ofthe latter, each of said links extending at a downward and inward inclination, a pair of floating plates pivotally connected respectiveiy with said pairs of links, a rod slidably extending through the uppermost of said floating plates and threadedly engaging the lowermost of said floating plates, a rigid tube encircling the rod in abutment with said floating plates, a rigid plate seated on said projection, and a collar fixedly secured to said rod for abutment with said rigid plate to limit downward movement of the rod relative to the sections.

4. An anchor device comprising, a pair of oppositely disposed arcuate sections for insertion within an opening, each of said sections being formed at its upper edge with an inturned flange, a pair of links pivotally connected with said sections adjacent the upper edges of the latter, a pair of links pivotally connected with said sections adjacent the lower edges of the latter, each of said links extendingatadownward and inward inclination,apairoffloatingplatcspivotallyconnected respectively with said pairs of links. a rod extending through said floating plates, a rigid plate seated on said flanges and having said rod extending therethrough, a collar fixedly secured on the rod for abutment with the rigid plate to limit downward movement of the rod relative to the sections, and means connecting the rod with the floating plates to provide for an upward movement of the latter to spread the sections upon rotation of the rod when said collar is in abutment with said rigid plate.

5. An anchor device comprising, a pair of oppositely disposed arcuate sections for insertion within an opening, each of said sections being formed at its upper edge with an inturned flange, a pair of links pivotally con nected with said sections adjacent the upper edges of the latter, a pair of links pivotally connected with said sections adjacent the lower edges of the latter, each of said links extending at a downward and inward incli nation, a pair of floating plates pivotally connected respectively with said pairs of links, a rod extending through said floating plates, a rigid plate seated on said flanges and having said rod extending therethrough, a collar fixedly secured on the rod for abutment with the rigid plate to limit downward movement of the rod relative to the sections, and means connecting the rod with the floating plates to provide for an upward movement of the latter to spread the sections upon rotation of the rod when said collar is in abutment with said rigid plate, said means further providing for a spreading of the sections upon bodily movement of the rod in an upward direction.

6. An anchor device comprising, a pair of oppositely disposed arcuate sections for insertion within an opening, each of said sections being formed at its upper edge with an inturned flange, a pair of links pivotally connected with said sections adjacent the upper edges of the latter, a pair of links pivotally connected with said sections adjacent the lower edges of the latter, each of said links extending at a downward and inward inclination, a pair of floating plates pivotally connected respectively with said pairs of links, a rod extending through said floating plates, a rigid plate seated on said flanges and having said rod extending therethrough, a collar fixedly secured on the rod for abutment with the rigid plate to limit downward movement of the rod relative to the sections, and means connecting the rod with the floating plates to provide for an upward movement of the latter to spread the sections upon rotation of the rod when said collar is in abutment with said rigid plate, said means further providing for a spreading of the'sections upon bodily movement of the rod in an upward direction, said sections having their peripheral faces formed with means for biting engagement with the wall of said opening upon the spreading of the sections.

7 An anchor device comprising, a pair of oppositely disposed arcuate sections for insertion within an opening, each of said sections being formed at its upper edge with an inturned flange, a pair of links pivotally connected with said sections adjacent the upper edges of the latter, a pair of links pivotally connected with said sections adjacent the lower edges of the latter, each of said links extending at a downward and inward inclination, a pair of floating plates pivotally connected respectively with said pairs of links, a rod extending through said floating plates, and means connecting the rod with the floating plates to provide for an upward movement of the floating plates to spread said sectiocps upon bodily upward movement of the ro 8. An anchor device comprising, a pair of oppositely disposed arcuate sections for insertion within an opening, each of said sections being formed at its upper edge with an inturned flange, a pair of links pivotally connected with said sections adjacent the upper edges of the latter, a pair of links pivotally connected with said sections adjacent the lower edges of the latter, each of said links extending at a downward and inward inclination, a pair of floating plates, pivotally connected respectively with said pairs of links, a rod extending through said floating plates, and means connecting the rod with the floating plates to provide for an upward movement of the floating plates to spread said sections uponbodily upward movement of the rod, said flanges extending at downward and inward inclinations for abutment by the uppermost pair of said links when the latter are moved to a horizontal position.

In testimony'whereof, I aifix my signature hereto.

FRED MICHALICEK. 

